Welcome to PT. The second egg might still hatch, give it time. Just one thing to keep in mind. Putting out food and water may attract other pigeons. There will be fighting. You can leave a permanent waterdish, but remove the seeds after they have eaten. Pigeons eat in the morning and then late afternoon again.
Thanks for allowing them to nest on your balcony and enjoy watching the little ones grow.
Thanks for allowing them to nest on your balcony and enjoy watching the little ones grow.